<template>
  <button><router-link to="/home" active-class="ooo">home</router-link></button>
  <button><router-link to="/about/aaa" active-class="ooo">About</router-link></button>

  <router-view></router-view>
</template>

<script>
export default {} 
</script>

<style scoped>
.ooo {
  background-color: pink;
}
</style>
